Vaillant ecotec plus boiler part name?

[bjcopping]

Hi,

I need to replace part of the filler loop on my vaillant ecotec boiler.

Its the part where the mains water enters the system (ive highlighted this in the image) -

Even when the grey tap on the isolation valve is fully closed, water is still getting through to the system causing the pressure to constantly go up. I have isolated it to being this problem by disconnecting the other end of the filler loop and seeing water slowly dripping through when it should not be.

Does anybody know the name of the part I need? I dont know the technical name for it and cant seem to find it anywhere online!

 

[Agile]

Vaillant make up some funny names for their bits!

However, if the left side is turned off and the pressure is still rising then that needs to be replaced as well.

I note there is no grey tap on the left side either!

In spite of all this German high quality engineering they cannot make plastic knobs which dont fail!

Tony

 

[bjcopping]

Hi Tony,

Thanks for your reply, its tap no 1 which is leaking from the mains supply, this leaks into the filler loop, and thus in turn is leaking into the boiler because that isolation valve has also failed (tap no 2) - causing boiler pressure to constantly rise.

When I disconnected the flexi-hose, water was very slowly dripping from each tap / isolation valve (1 and 2).

I need to know the part numbers or part names as I know there are loads of types of filler loops and valves etc.

Can anyone help with the names? The part on the right is a funny shape and is made up of both valve 1 and 3.

 

[jackthom]

Hi, if you take a look at page 31, section 5.4.2 in this manual it may help sort things out.

http://www.vaillant.co.uk/stepone2/data/downloads/d7/42/00/ecoTEC_installation_and_servicing.pdf

 

[David937]

Hi,

I think this is what you should be after:

http://allsparesdirect.co.uk/index.php?main_page=product_info&cPath=35_200&products_id=2642

You can get all the part numbers and easily find what you need from the spares manual here
HTH

 

[bjcopping]

Brilliant - thanks David, this is exactly what I need!

Tony said I should replace the left one too (thats also leaking!!) - water dripped out of this when I disconnected the flexi hose - and yes the valve was shut!

Wonder if I can find that too on this site

Thanks again

 

[David937]

Brilliant - thanks David, this is exactly what I need!

Tony said I should replace the left one too (thats also leaking!!) - water dripped out of this when I disconnected the flexi hose - and yes the valve was shut!

Wonder if I can find that too on this site

Thanks again

I have edited my post above with a link to the spares catalogue

 

[bjcopping]

Great, thanks again people, glad I joined Ive been searching all Day!